17-65153443-A-G

Position:

chr17-65153443-A-G

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_003835.4(RGS9):c.79A>G(p.Met27Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000421 in 1,614,150 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000020 ( 1 hom. )

Consequence

RGS9
NM_003835.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.43

Variant links:

Genes affected

RGS9 (HGNC:10004): (regulator of G protein signaling 9) This gene encodes a member of the RGS family of GTPase activating proteins that function in various signaling pathways by accelerating the deactivation of G proteins. This protein is anchored to photoreceptor membranes in retinal cells and deactivates G proteins in the rod and cone phototransduction cascades. Mutations in this gene result in bradyopsia. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Sep 2009]

RGS9 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.029693425).

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000256 (39/152338) while in subpopulation AMR AF= 0.00242 (37/15306). AF 95% confidence interval is 0.0018. There are 0 homozygotes in gnomad4. There are 14 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
RGS9	NM_003835.4 linkuse as main transcript	c.79A>G	p.Met27Val	missense_variant	2/19	ENST00000262406.10	NP_003826.2
RGS9	NM_001081955.3 linkuse as main transcript	c.79A>G	p.Met27Val	missense_variant	2/19		NP_001075424.1
RGS9	NM_001165933.2 linkuse as main transcript	c.79A>G	p.Met27Val	missense_variant	2/17		NP_001159405.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RGS9	ENST00000262406.10 linkuse as main transcript	c.79A>G	p.Met27Val	missense_variant	2/19	1	NM_003835.4	ENSP00000262406	P4	O75916-1

Frequencies

GnomAD3 genomes

AF:

0.000256

AC:

AN:

152220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00242

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000321

AC:

AN:

249572

Hom.:

AF XY:

0.0000222

AC XY:

AN XY:

135406

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000203

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000198

AC:

AN:

1461812

Hom.:

Cov.:

AF XY:

0.0000165

AC XY:

AN XY:

727220

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000313

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000540

Gnomad4 OTH exome

AF:

0.0000993

GnomAD4 genome

AF:

0.000256

AC:

AN:

152338

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74498

show subpopulations

Gnomad4 AFR

AF:

0.0000240

Gnomad4 AMR

AF:

0.00242

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.000487

ExAC

AF:

0.0000497

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 11, 2023

This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 27 of the RGS9 protein (p.Met27Val). This variant is present in population databases (rs201444204, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with RGS9-related conditions. ClinVar contains an entry for this variant (Variation ID: 858339). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt RGS9 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.59

BayesDel_addAF

Benign

-0.089

BayesDel_noAF

Uncertain

-0.080

CADD

Uncertain

DANN

Benign

0.97

DEOGEN2

Uncertain

0.47

T;.;.;D

Eigen

Pathogenic

0.71

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.86

D;D;D;D

M_CAP

Benign

0.023

MetaRNN

Benign

0.030

T;T;T;T

MetaSVM

Benign

-0.59

MutationAssessor

Uncertain

2.3

.;.;M;M

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.54

PROVEAN

Uncertain

-3.7

.;D;D;D

REVEL

Uncertain

0.31

Sift

Pathogenic

0.0

.;D;D;D

Sift4G

Uncertain

0.0020

.;D;D;D

Polyphen

1.0, 0.99

.;.;D;D

Vest4

0.87, 0.86

MVP

0.77

MPC

0.75

ClinPred

0.48

GERP RS

5.5

Varity_R

0.44

gMVP

0.86

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over